Universal Air EX529443C A/C Expansion Valve

Block Expansion Valve for Hyundai and Kia A/C Systems

The Universal Air Block Expansion Valve, part number EX529443C, is an OE-style A/C expansion valve for select Hyundai and Kia vehicles. It regulates refrigerant flow into the evaporator to support proper air conditioning performance in the cabin.

Key Features

• Universal Air Block Expansion Valve line
• Part number EX529443C
• Direct-fit style A/C flow restrictor for select Hyundai and Kia applications
• Used in block-style expansion valve HVAC systems
• Fits 2006 Kia Magentis, N/A, Old Style; Block Expansion Valve
• Fits 2001-2006 Kia Optima, N/A, OE Replacement; Old Body Style; Block Expansion Valve
• Fits 1999-2005 Hyundai Sonata, N/A, Block Expansion Valve
• Fits 2002-2005 Hyundai XG350, N/A, Block Expansion Valve
• Fits 2001-2005 Kia Magentis, N/A, Block Expansion Valve
• Fits 2001 Hyundai XG300, N/A, Block Expansion Valve

Detailed Description

Universal Air EX529443C is a block expansion valve for HVAC systems that use this style of A/C flow control. It is listed for 1999-2005 Hyundai Sonata, 2002-2005 Hyundai XG350, 2001 Hyundai XG300, and select Kia Magentis and Optima models with old-body-style or old-style block expansion valve configurations. Use EX529443C when replacing a worn or restricted valve in the specified Hyundai Sonata or Kia Optima A/C system.

Common Issues This Part Can Address

• Weak or inconsistent cabin cooling
• Refrigerant flow restriction at the evaporator inlet
• A/C performance loss caused by a failing expansion valve
• Improper refrigerant metering in block-style HVAC systems
• Temperature fluctuations during compressor operation

Installation Notes and Tips

Verify the vehicle year, make, model, and HVAC valve style before ordering. This part is for block expansion valve applications only, and fitment varies by body style on some Kia Optima and Kia Magentis models. Replace the valve only after confirming the system is clean and the correct refrigerant service procedure is followed.

Quality Assurance

Universal Air EX529443C is cataloged as an OE replacement-style HVAC component for the listed Hyundai and Kia applications. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.